Origin

Derivatives

arboreality

But both types of features were already present in larger non-avian theropods that neither climbed nor flew, and the claw and foot proportions of Archaeopteryx do not argue for arboreality any more than for grounddwelling.

There is no persuasive evidence indicating arboreality in dromaeosaurs, although that negative evidence does not preclude arboreality altogether.

We cannot rule out the possibility that a dromaeosaurid could climb a tree, but none of them show obvious modifications specifically for arboreality.